During a readiness exercise, two Air Force security policemen were guarding entry to a bunker-like structure where aircraft were kept. When a pilot about to do a preflight check approached without his identification in plain view, one of the Air Force security policemen asked him for it. "I don't see why I have to show you my ID," the pilot snapped. "After all, it is my plane." "Sir, with all due respect, it may be your plane," replied the Air Force security man, "but it's sitting in my garage!"